What can be done from old plastic window sills. Repair of wooden window sills

29.08.2019

Plastic is usually chosen for its performance properties. It is clear that such a window does not allow air to pass through, which means that there is less dust in the apartment. Ventilation, on the other hand, can also be forced to ensure that everything that is not needed is filtered out of the flow. As a result, cleaning time and money are saved. There are also more specific points. For example, when the frame is installed, the package itself is thinner, and if it is aligned with the outer edge of the wall, then there is plenty of room inside to place flowers. As a result plastic window sill It turns out at least twice as wide as usual. And this is great, because students will make a shelf there, scientists will create a laboratory, and ordinary citizens will certainly find something to fill the space that has appeared. The bad thing is that the repair of plastic window sills can be caused by anything, we suggest discussing this.

Why plastic window sills have to be repaired

For those who have already matured, this section is hardly of any help. Although, since there is nowhere to hurry now, it will not be superfluous to read. Plastic window sills are hollow inside, and this is not surprising. Only in the USSR, along with the extensive method of management, things were made for centuries. Until now, many still have irons, refrigerators, sewing machines those times, we are no longer talking about cast iron bathtubs, the limits of the service life of which are definitely not available.

Window sill with cap

Unlike plastic window sills, they are similar to the Egyptian pyramids.

So, hollow structures allow you to save. And this, not counting the lower economic costs of transportation, also reduces material consumption, solving the main problem of the manufacturer: to sell little for a high price. In fact, we pay for skillful technologies, and in the case of window sills, they come down to the creation of only three (90% of cases) types of profiles:

What to do if the plastic window sill is crushed

Thus, a picture is already emerging of what to do if the structure is pressed through. Let's split this case into two more:

The window sill has visible damage, cuts, breaks, cracks.
The window sill is simply squeezed through in places without violating the integrity of the coating.

When there is nothing to break, it is logical to fill out the profile with some strong composition. With wide fractures, wooden glazing beads are placed inside according to the shape of the profile. This is a fairly simple and cheap solution. Smaller damage can be captured from the inside by cold welding, any other inelastic composition. It is important to somehow neutralize the vertical deflection under the surface. Because in the future, when the mastic is applied and everything is painted, a repeat is possible emergency, and hardly anyone wants to redo all the work again.

Please note that many companies lay rails, and the gaps are sealed with polyurethane foam. It is clear that high strength in this case is not to be expected. If, for example, the thickness of the window sill is 20 mm, and the foam is laid four times thicker, then the structure has a greater degree of freedom in order to break. And if the owner of the house decides to change the curtains, then his weight may well crush the plastic window sill. Therefore, the progress of the installation work must be controlled, and even better, do everything yourself.

We would recommend laying a harder material between the glazing beads. For example, polyisocyanate board is a good insulator. It is specially made to hold the pressure of the soil during frost heaving and is used to finish the foundations of houses. Better yet, completely lay everything with wood. To do this, the bars should be protected from fungus, insects and moisture with appropriate types of primers (fugicidal, antiseptic, insecticidal, waterproofing). Otherwise, the tree will constantly absorb water, which will not lead to anything good.

Suitable for these purposes and reinforced drywall. And in order not to absorb moisture, cover the sheet with a special mastic, like Hydromast. This solution is clearly not cheap, so it will not work as a typical one. But if there are drywall trimmings left after the repair, then this will do. Please note that Hydromast is suitable for concrete and many other types of surfaces.

Plastic window sill

Superficial damage to the plastic window sill

Very often, inaccurate actions lead to the fact that there is a need to repair plastic window sills. It can be ridiculously simple. For example, window fogging in winter. It would seem, well, wipe it with a cloth, but no!

They say that there was a case when the owners, through negligence, directed a fan heater at a plastic window. After some time, the profile led. In this case, you will need a special mastic. This is a composition resembling putty, but intended for PVC. For example, Planipatch is suitable. True, it is sold in bags, and not everyone wants to spend money, but you can always look for an alternative. Ordinary putty is not suitable for obvious reasons of low strength, at the same time, silicone adhesive is not suitable, because it has elastic properties. Even if the plastic window sill is painted after repair, the product will still quickly become unusable.

Damage to the window sill can be caused by pets

From what has been said, it should be clear that applying mastic is already the second step. We localized the crack, strengthened the profile from the inside so that it does not bend and level the surface for painting. And for many, this is enough. It is logical to read the methods for applying mastics in the instruction manual, because this kind of thing is often made so that it is not taken on one of the existing materials. That's why bi-component epoxy adhesives often come with a special spatula made of plastic that seems to be no different from the parts being bonded. But the composition does not stick to it. The same goes for cold welding, for which you need slightly damp rubber gloves.

In any case, the surface of the window sill must be cleaned before applying any composition. This is what solvents are for. If you take Feyco paints, then everything is processed with V154 cleaner before work. Please note that all compounds are poisonous, for example, Cosmofen 20 contains tetrahydrofuran. This is a poisonous substance that enters the body by any means, including through the skin and lungs. With intoxication, swelling of the head and respiratory tract occurs, temples hurt, and many other unpleasant effects occur. In chronic poisoning, work is disrupted nervous system. The MPC of tetrahydrofuran is the highest of this class of solvents and is 100 mg per cubic meter of air. If you take furan in its pure form, then the dose is reduced by 200 times. That is why tetrahydrofuran is chosen for the basis of cleaners.

Cosmofen 20 dissolves a small layer of plastic, which makes it easy to remove dirt of any severity. It was this substance that was used by the authors of one YouTube video to check the quality of Feyco paint. It must be said that a solvent that easily removes any contaminants with a colored oak-colored surface did not cope. Therefore, it is logical to purchase paint from Feyco. At the same time, within the framework of the brand, a program for a personal computer comes out to accompany it, with the help of which you can dial any gamut in RAL codes from the basic 18 colors of the brand. The package will give the amount of each paint in mass fractions. White window owners don't really need all this, but for everyone else it will help to adjust the putty or paint in accordance with their tastes or the style of the frame design.

Please note that these manufacturers have a lot of various materials for working with plastic, so you can, if not buy, then choose the type of composition, and purchase it where you want. For example, Contrasil avoids the formation of shells and craters on the surface. This is true for surfaces contaminated with silicone, where the solvent simply washes away everything superfluous. This means that it is also necessary for those who have repaired plastic window sills with such compositions.

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During the operation of window sills, it becomes necessary to restore their original appearance. How to repair the window sill with your own hands, we will consider in this article.

Reasons for window sill repair

The window sill is an important structural component of the window, which performs the following functions:

gives the window an aesthetic appearance, in harmony with the overall design of the room;
increases the thickness of the warm air gap through which heat loss is possible;

performs the role of collecting condensate, thereby preventing moisture from leaking onto the walls;
the window sill is a great place to place flowers;
helps to simplify the process of caring for windows, when washing or cleaning;
modern wide window sills use as a sofa or tabletop.

The window sill performs many useful functions, but with prolonged or improper use of the window sill, the original appearance is lost, and the window sill requires restoration or replacement.

Reasons for window sill repair:

the appearance of cracks;
presence of scratches
traces of flower pots,
damage to the window sill with hot objects,
surface deformation,
mechanical damage to the window sill.

To avoid window sill repair or restoration and ensure long-term use this subject, you should, before choosing a window sill, check it for compliance with the requirements for a high-quality window sill:

the window sill must be resistant to moisture to prevent deformation of the surface during operation,
UV resistance will help avoid fading or discoloration of the window sill,
resistance to mechanical damage will help place flowers or other things on the windowsill,
easy maintenance - saves time cleaning the window sill,
harmlessness and environmental friendliness of materials will help maintain health and avoid allergies,
natural and attractive appearance will help to harmoniously fit the window sill into the design of the room.

The main types of window sills

Depending on the type of material from which the window sill is made, there are:

plastic window sills
wooden window sills,
concrete window sills
stone window sills
chipboard window sills.

1. Plastic window sills are the most practical and convenient to use. Advantages of installing a plastic window sill:

ease of care
simple installation,
low cost,
variety of colors.

Disadvantages of using a plastic window sill:

instability before mechanical damage,
easy flammability,
appearance of scratches
fragility.

2. Wooden window sills harmonize well with windows made of natural wood and give the room warmth and comfort.

Advantages:

harmlessness and environmental friendliness;
easy installation;
resistance to mechanical damage;
naturalness and natural appearance.

Flaws:

a high level of moisture absorption leads to deformation of the window sill,
easy ignition,
the appearance of mold and fungus,
high price.

3. Concrete window sills - advantages:

practicality,
stability,
the possibility of dyeing in any color,
strength.

Flaws:

the appearance of potholes,
complexity of the restoration
high moisture absorption.

Stone window sills are of two types:

from artificial stone,
from natural stone.

Window sills made of artificial stone are cheaper than those made of natural stone. A variety of dyes help create a window sill of any shade and texture. Such window sills require special care with polishes. The window sill made of artificial stone is heat-resistant, does not allow moisture to pass through, but is easily scratched.

Window sills made of natural stone are most often made of onyx, granite or marble. The most durable are granite window sills. Marble window sills have a beautiful aesthetic appearance and a variety of natural colors.

Stone window sills are a very beautiful, but impractical solution. Such window sills are unstable to mechanical damage, moisture, easily get dirty and hard to clean.

4. Chipboard window sills are made of moisture-resistant material, which is covered with laminate.

Advantages:

strength, rigidity,
resistance to mechanical stress,
UV resistance,
heat resistance,
variety of textures and colors,
ease of care.

Repair of plastic window sills

During the operation of plastic window sills, there are often reasons for repairing the window sill.

There are two ways to repair a plastic window sill:

installation of a plastic nozzle on the windowsill,
window sill replacement.

Overlays are installed on those window sills, the thickness of which does not exceed 60 mm. Most often, the overlay is made of rigid polyvinyl chloride.

Advantages of installing a plastic lining:

saving money investment,
ease of installation,
strength,
fire resistance,
saving physical strength,
UV resistance,
moisture resistance,
a variety of colors will allow you to choose the overlay for the color or texture of the window.

Overlay installation tools:

roulette,
saw,
glue,
silicone.

1. Clean the old window sill from dirt and dust. If there are depressions or cracks, seal them with glue.

2. Using a tape measure, measure the size of the window recess. Trim excess lining to size.

3. Wipe the window sill with an alcohol or acetone solution.

4. Apply mounting adhesive to the surface of the old window sill.

5. Place a press on the pad, such as old books.

6. Leave the window sill for 4-5 hours to dry completely.

7. The crotch between the lining and the sill should be filled with silicone.

8. To decorate the ends of the window sill, you should purchase special plugs.

9. To install the plug, measure the length of the window sill and cut the required element. The plug is attached using a mounting adhesive.

10. After installation and complete drying of the lining, remove protective film. Plastic window sill repair completed.

Replacing a plastic window sill is a long and complicated process that requires additional financial and physical investments. To replace the window sill, it is necessary to break up the wall space located near the window, and therefore provide additional costs for wall decoration. Therefore, in the presence of small and minor damage, it is recommended to install a plastic nozzle, which will help hide all defects and give the plastic window sill an aesthetic appearance.

Repair of wooden window sills

Wooden window sills require careful maintenance due to increased moisture absorption, so it is recommended to coat the wooden coating with special impregnations and varnishes every three to four years in order to extend the life of the window sill.

If minor scratches or damage appear on the window sill during use, use the method of puttying a wooden window sill.

Putty will help increase the level of water resistance, strength, elasticity of the window sill.

Instructions for restoring a wooden window sill:

1. Using a special solution or a hot air gun, remove excess old paint.

2. Inspect the window sill for deformation, scratches or dents.

3. If shallow damage is found, use acrylic putty, for large dents, fiberglass putty is recommended.

4. In addition to putty, you should purchase impregnation and primer, which will help ensure good adhesion of putty and wood, as well as prevent the development of mold and fungus on the surface of the window sill.

5. The first layer - impregnation, after which you need to wait 60 minutes to apply a primer.

6. After the primer has completely dried, puttying of the surface should be started. Apply several layers of putty and level the surface.

7. After the putty has dried, start sanding the window sill with sandpaper.

8. The next step involves painting and applying varnish to the surface of the window sill.

9. The paint on the window sill is applied in an unusual way.

10. Spread polyethylene film so as not to stain the floor.

11. Pour the paint in small portions onto the window sill, so that it spreads over the entire surface without using a roller or brush.

12. Wait until the surface is completely dry. Remove small bumps or smudges of paint with sandpaper.

13. Apply varnish in the same way. Sand the surface after drying.

Concrete window sill repair

Consider two ways to repair an old window sill made of concrete.

Restoration of the window sill with putty.

1. If there is paint on the windowsill, it should be removed using a special solution or equipment.

2. After cleaning the surface, apply a primer.

3. The next step is puttying the surface.

4. After the putty has dried, apply another coat of primer, and then paint the surface.

The second method involves the restoration of a concrete window sill with a cement mortar.

1. Remove the paint from the windowsill.

Paint removal methods:

with a layer thickness of up to 3 mm, use an electric dryer, gas burner or chemical solutions
for a layer thickness of more than 3 mm, it is recommended to use a construction hammer.

2. The cleaned surface must be primed. Pay attention to the drying time of the primer, which is indicated in the instructions.

3. Prepare a mixture that consists of fine gravel and cement 1:1. The consistency of the mixture should be thick.

4. Install the formwork on the edge of the window sill and apply the mortar.

5. After two days, sand the surface with a grinder or sandpaper.

Tip: While sanding the window sill, you should periodically water the surface with water to achieve a better result.

6. The final stage is window sill finishing: painting or installing tiles.

Stone window sill restoration

For the restoration of an artificial stone window sill, there are special means such as impregnations, gels or pastes.

To restore a stone window sill, use grinding machine which will help remove minor scratches and surface roughness.

Then apply special solutions that will restore the structure of the stone.

After the solutions have completely dried, you need to sand and polish the window sill again.

To restore a window sill made of natural stone, it is better to use the services of professionals. Because a natural stone more sensitive to grinding and to the use of a variety of solutions.

Proper care of a stone window sill will help maintain presentable appearance surfaces for a long time. When placing flower pots, special felt pads should be laid to prevent scratches. Avoid moisture or hot objects on the surface of natural stone.

Restoration of a window sill from chipboard

The reason for the repair of the laminated window sill is high humidity, which provokes deformation, friability of the surface or peeling of the laminated coating.

Instructions for repairing a window sill from chipboard:

1. Clean the window sill and remove the pieces of wood that have flaked off.

2. Use temrofen to dry the surface, and a grinder or sandpaper will help to sand the damage.

3. Make a solution of sawdust and PVA glue.

4. Fill with mortar the places formed after grinding the surface.

5. Place a press on the window sill to ensure complete drying and prevent deformation.

6. Coat the repaired area with silicone.

7. Using mounting adhesive, glue the previously removed section of the laminate.

One of the main elements of the window opening is the window sill: thanks to it, the window looks neat, the room receives additional protection from heat loss and precipitation, and fresh flowers can be installed on the surface. With long-term operation, it may be necessary to repair the window sill; it is quite possible to carry out the procedure with your own hands, the main thing is to acquire all necessary materials and tools, as well as read the instructions.

When may window sills need to be repaired?

Restoration work may be required in the following cases:

The surface is covered with cracks, chips, scratches or scuffs, which not only worsens the appearance, but also the performance of the product. Most often, this element suffers from excessive mechanical stress.
Deformation of a surface that can buckle or deteriorate when exposed to elevated temperatures.
Burnout of the surface from ultraviolet radiation. Constant exposure to sunlight leads to fading, which is especially noticeable on a product that does not have the classic white, but a different shade or pattern.
If the product is made of wood, it may be damaged in contact with moisture, and in this case, the restoration of the window sill or its complete replacement may be required.

Old window sill

Types of window sills

These products are classified according to the material of manufacture:

How to repair a plastic window sill yourself?

The procedure for repairing an element may differ depending on the degree of damage, the material of manufacture, as well as the method of restoration. The choice of consumables and tools depends on this. PVC window sill repair includes the following steps:

Cleaning the surface from dirt, sealing cracks, degreasing with alcohol.
Preparation of the lining, cutting the product to the size of the window sill.
Applying glue or mounting compound to the surface, installing the lining. After that, a press is placed on it and the structure is left until the glue dries. This will take 1-2 hours.
The gap under the lining is filled with sealant, the ends are masked with plugs.
After the glue dries, the film is removed from the top of the lining, which protects the coating from mechanical damage and chemicals.

Repair of window sills made of wood includes the following steps:

Removal of paint residues, puttying in case of cracks, chips and scratches.
Impregnation with moisture-resistant and fire-resistant compounds.
After drying, the surface is re-coated with putty and sanded.
Staining the window sill, applying a transparent or colored varnish. To do this, you can use a brush or roller.
The dried surface is polished and leveled.

Advice: wooden structures require regular preventive actions to protect against moisture, and the minimum do-it-yourself window sill repair involves applying varnish and impregnation every 3 years.

Recovery concrete product you can use putty. Traces of paint, dirt and grease are removed from the surface, primed, puttied, and then the window sill is painted. This is the easiest way if the product has minimal damage. In case they are more serious, the restoration is carried out with a cement mortar in the following order:

Removal of paint, degreasing.
Priming the surface, drying the composition.
Preparation of a mixture of cement with gravel in a ratio of 1 to 1, installation of formwork and pouring mortar.
After 2 days, after drying, the surface should be sanded.
The final stage is the installation of tiles or painting.

Advice: during grinding it is worth watering the concrete with a small amount of water for the best effect.

Window sill repair plastic windows made from decorative stone, involves processing with special pastes and impregnations. The surface can be sanded, in the presence of chips, it is necessary to purchase compounds that restore the structure of the material.

Overlay for restoration of a window sill

Restoration of a fiberboard product includes the following steps:

Cleaning, removal of exfoliated fragments, if any.
Drying, grinding wood flooring using simple sandpaper or a drill with special nozzles.
Mixing glue-based solution with sawdust.
Closing cracks and chips with the resulting composition.
Installation of a press to protect the product from unintentional deformation.
Applying a layer of silicone sealant that can protect the item from moisture.
Gluing the initially removed fragments from the laminate.

Which is better: repairing plastic window sills or replacing them?

Many owners are wondering if it is worth repairing the product if you can buy a new one. Recovery is cheaper and takes less time when it comes to minor damage. A complete replacement is usually carried out if the product has significant defects, and to restore it with full preservation operational properties(strength, durability, etc.) will not work. In addition, the repair of plastic window sills has the following advantages:

Conclusion: if you want to understand how to repair a plastic window sill, you just need to get a minimum set of tools and strictly follow the instructions. The procedure takes a minimum of time and allows you to return the item to an updated appearance.